The growth result was supported by a jump in exports during the December quarter, but economists said new data on Thursday suggested that might not be repeated during the March quarter.

The Australian Bureau of Statistics said the monthly trade balance deteriorated to a seasonally adjusted deficit of $1.06 billion in January after a revised $688 million deficit in December, and compared with a $500 million trade gap forecast by economists.

That was largely the result of a one per cent fall in exports, led by a 4.6 per cent drop in coal exports and a 1.1 per cent decline in metal ores and minerals shipments.

Trade minister Craig Emerson attributed the drop in bulk commodity volumes to this summer's floods in Queensland and cyclones in Western Australia.

But he also pointed to a 5.4 per cent increase in capital goods imports as a sign of expanded productive capacity in the economy.

"However, the extreme weather of Australia's summer and continued weakness in the global economy will influence monthly totals."

TD Securities strategist Alvin Pontoh said the deficit could widen further in February because of the shutdown for new year festivities in Australia's number one trading partner, China.

He said in 2012, metal ore shipments dropped $1 billion in the month of the Chinese New Year.

"If this is repeated, we could see the deficit widen significantly in February, but this should be temporary," Mr Pontoh said.

However, there was more positive news for the construction industry, with expansions in house building and engineering contributing to the sector's strongest result since June 2010.

The Australian Industry Group (Ai Group)-Housing Industry Association performance of construction index increased 9.4 points in February, but remained below the crucial 50-point mark that separates contraction from expansion, at 45.6 points .

"While it is only one month's reading and comes after more than two and a half years of decline, the pick-up in house building activity is very welcome news," Ai Group director of public policy Peter Burn said.